US2853057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated reciprocating mechanism
Assignee: Individual
•
Filing: 1956-08-16
•
Granted: 1958-09-23
•
Expires: 1976-08-16
Abstract
No abstract record available.
Inventors
- 👤 James H Mcauley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/02; F04B47/04; Y; Y10; Y10S; Y10S417/00; Y10S417/904; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1970286A
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US2000805A
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US2073809A
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US2048550A
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US2282977A
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US2287709A
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US2283516A
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US2583285A
Cited
US2708912A
Cited
US2745386A
Cited
US2729941A
Cited
US2726642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |